Nancy,
Here is why everyone, including me is saying pay the money.
First, using wet sandpaper you will carefully sand the offending area, being very careful not to go through the color coat. Easy, cost of the different grits of paper needed about 20 bucks.
Second, clean the area with a paint prep. Obtain at the professional auto paint store where you get your paint. 20 bucks
Now mask the entire coach, or you WILL get overspray on it. Figure on 20 bucks of tape and 40 bucks of plastic. Oh yeah, it will take you the better part of a day.
You are through with the cheap and easy part.
Obtain a spray gun. They range from 120 bucks to over a 1000. Oh yeah add a dessicant cannister to dry the air. You will need a medium sized air compressor. You can't use your coach air because you just wrapped the intake in plastic. Count on 500 for a compressor that will be big enough to power the spray gun.
Buy a respirator. 50 bucks. You don't want to paint the inside of your lungs.
Now you need the clear coat. Cheap stuff is 30 bucks a quart, and goes up to over a 100 a quart. You will need some catalyst (hardener) 30 bucks, and some reducer, 30 to 50 bucks.
Now you can paint.
After you paint, you will sand again to get the smooth finish on the clear coat. Now you need a buffer, 150 bucks, and an assortment of buffing pads and compounds, another 200 bucks.
I may be off a little on some of my estimates, but not grossly wrong. I am not a pro painter, but I own all of the stuff above, and have done amateur body painting. It looks amateur.
The prices quoted to paint an RV or repair an RV can seem outrageous to those not aware of what is involved. I took the time to detail the post so that you could see why they are asking what they are asking.
Richard and Rhonda
1999 Newell
Subaru Outback toad